<template>
    <view class="goods-detail" :class="themeName">
        <navbar
            title="商品详情"
            :background="{ background: `rgba(256,256,256,${percent})` }"
            :titleColor="`rgba(0,0,0,${percent})`"
            :immersive="true"
        ></navbar>
        <!-- 轮播图 -->
        <bubble top="220rpx" :page="2" :discharge="isDischarge"></bubble>
        <goods-swiper
            :images="goodsInfo.goods_image"
            :video="goodsInfo.video"
            :video-cover="goodsInfo.video_cover"
        />

        <!-- 商品基础信息 -->
        <view class="goods-info">
            <view class="flex row-between col-top">
                <view class="">
                    <!-- 原价 -->
                    <price
                        :content="
                            goodsSpecOptions.spec.sell_price ||
                            goodsInfo.sell_price
                        "
                        main-size="46rpx"
                        minor-size="32rpx"
                        :color="themeColor"
                    >
                        <view
                            slot="suffix"
                            class="muted line-through m-l-12 xxs"
                        >
                            <price
                                :content="
                                    goodsSpecOptions.spec.lineation_price ||
                                    goodsInfo.lineation_price
                                "
                                prefix="原价￥"
                                :line-through="true"
                                v-if="Number(goodsInfo.lineation_price)"
                            />
                        </view>
                    </price>
                    <!-- 会员价 用户有登陆且且该商品有设置会员价才显示 -->
                    <view
                        class="vip-price flex"
                        v-if="goodsInfo.member_price && !!userInfo.id"
                    >
                        <view class="price-name xxs">会员价</view>
                        <view style="padding: 0 10rpx">
                            <price
                                :content="goodsInfo.member_price"
                                :weight="500"
                                color="#7B3200"
                            >
                            </price>
                        </view>
                    </view>
                </view>

                <view class="sm lighter share" @tap="showShare = true">
                    <u-icon name="share" />
                    <text class="m-l-10">分享</text>
                </view>
            </view>
            <view
                class="share-money flex m-t-20"
                v-if="distribution.is_show && distribution.earnings > 0"
            >
                <view class="flex-1">
                    好友下单最高可赚
                    <text class="bold m-l-14">
                        ¥{{ distribution.earnings }}
                    </text>
                </view>
                <view @tap="showShare = true">
                    立即分享
                    <u-icon name="arrow-right" />
                </view>
            </view>
            <view class="goods-name lg">{{ goodsInfo.name }}</view>
            <view class="flex row-between muted xs">
                <template v-if="goodsInfo.stock_show">
                    <view>库存: {{ goodsInfo.total_stock }}</view>
                </template>
                <view>销量: {{ goodsInfo.sales_num }}</view>
                <view>浏览量: {{ goodsInfo.click_num }}</view>
            </view>
        </view>

        <!-- S 优惠 -->
        <view class="nr discounts">
            <text class="muted">优惠</text>
            <view class="xxs m-l-20 flex-1">
                <view class="flex" @tap="showCoupons = true">
                    <u-tag
                        text="领券"
                        mode="plain"
                        size="mini"
                        class="m-r-20"
                        :color="themeColor"
                        :border-color="themeColor"
                    />
                    <block v-for="item in goodsCouponSpecs" :key="item">
                        <view class="coupon-tag">{{ item }}</view>
                    </block>
                    <u-icon
                        name="arrow-right"
                        class="muted nr"
                        style="margin-left: auto"
                    />
                </view>

                <!-- 				<view class="flex m-t-30">
					<u-tag
					  text="积分" 
					  mode="plain" 
					  size="mini" 
					  class="m-r-20"
					  :color="themeColor"
					  :border-color="themeColor" 
					/>
					<text class="nr">订单完成可获得{{ 0 }}积分</text>
				</view> -->
            </view>
        </view>
        <!-- Coupons Popup -->
        <u-popup
            v-model="showCoupons"
            mode="bottom"
            border-radius="14"
            :closeable="false"
            :safe-area-inset-bottom="true"
        >
            <view class="coupons">
                <view class="coupons-header">
                    <text>领券</text>
                    <u-icon
                        name="close"
                        color="#666666"
                        @tap="showCoupons = false"
                    />
                </view>

                <view class="coupons-main">
                    <!-- 					<view class="flex m-b-30">
										<u-tag
						  text="积分" 
						  mode="plain" 
						  size="mini" 
						  class="m-r-20"
						  :color="themeColor"
						  :border-color="themeColor" 
						/>
						<text class="nr">订单完成可获得{{ 0 }}积分</text>
					</view> -->
                    <scroll-view
                        :scroll-y="true"
                        style="height: 700rpx; touch-action: none"
                    >
                        <view
                            class="coupons-item"
                            v-for="item in goodsCouponList"
                            :key="item.id"
                        >
                            <coupon-card
                                mode="get"
                                :name="item.name"
                                :money="item.money"
                                :condition="item.condition"
                                :time="item.effective_time"
                                :scene="item.use_scene"
                                :coupon-id="item.id"
                                :gotten="!!item.is_receive"
                                :button="{
                                    name: '领取',
                                    theme: 'primary',
                                    disable: !!item.is_available,
                                }"
                                @button="getCoupon"
                            />
                        </view>
                        <u-empty
                            v-if="!goodsCouponList.length"
                            text="暂无优惠券"
                            src="/static/images/empty/coupon_icon.png"
                            :icon-size="180"
                        />
                    </scroll-view>
                </view>
            </view>
        </u-popup>
        <!-- E 优惠 -->
        <view class="nr specification">
            <text class="muted flex-none">运费</text>
            <text class="m-l-20">{{ goodsInfo.free_shipping_tips || '以提交订单时为准' }}</text>
        </view>
        <!-- S 规格 -->
        <view class="nr specification" @click="onGoodsOptions">
            <text class="muted flex-none">已选</text>
            <text class="m-l-20">{{ specValueStr }}</text>
            <u-icon
                name="arrow-right"
                class="muted"
                style="margin-left: auto"
            />
        </view>

        <!-- 规格选择Popup -->
        <goods-spec
            v-model="showGoodsSpec"
            :defaultInfo="{
                image: goodsInfo.image,
                price: goodsInfo.sell_price,
                stock: goodsInfo.total_stock,
                unit: goodsInfo.unit_name,
            }"
            :buttons="specButtonsList"
            :spec-list="goodsInfo.spec_value"
            :spec-map="goodsInfo.spec_value_list"
            @buy="handleBuy"
            @cart="handleCartAdd"
            @change="changeGoodsSpec"
        />
        <!-- E 规格 -->

        <!-- diy -->
        <view v-for="(item, index) in pagesData" :key="index">
            <template v-if="item.name == 'reviews'">
                <w-reviews
                    v-if="item.show"
                    :content="item.content"
                    :styles="item.styles"
                    :comment="goodsComment"
                    :goods-id="goods_id"
                />
            </template>
            <template v-if="item.name == 'goodsrecom'">
                <w-goodsrecom
                    v-if="item.show"
                    :content="item.content"
                    :styles="item.styles"
                />
            </template>
        </view>

        <!-- 商品介绍 -->
        <view class="detail">
            <view class="detail-title nr">商品详情</view>
            <u-parse
                :html="goodsInfo.content"
                :show-with-animation="true"
            ></u-parse>
        </view>

        <!-- 功能按钮组 -->
        <view class="functions">
            <view class="icon-group">
                <view class="icon-item" @tap="goService">
                    <u-icon name="kefu-ermai" size="42" />
                    <text>客服</text>
                </view>
                <view class="icon-item" @tap="changeCollect(isGoodsCollect)">
                    <template v-if="isGoodsCollect">
                        <u-icon
                            name="star-fill"
                            size="42"
                            :color="themeColor"
                        />
                    </template>
                    <template v-else>
                        <u-icon name="star" size="42" />
                    </template>
                    <text>收藏</text>
                </view>
                <view class="icon-item" @tap="goCart">
                    <u-badge :count="cartNum" :offset="[-10, -10]"></u-badge>
                    <u-icon name="shopping-cart" size="42" />
                    <text>购物车</text>
                </view>
            </view>
            <view class="button-group">
                <view
                    class="button-item button-item--cart"
                    @click="onCart"
                    v-if="goodsInfo.type == 1"
                    >加入购物车</view
                >
                <view class="button-item button-item--buy" @click="onBuy"
                    >立即购买</view
                >
            </view>
        </view>

        <share-popup
            v-model="showShare"
            :share-id="goods_id"
            pagePath="pages/goods_detail/goods_detail"
            :type="1"
        />
        <!-- 页面状态 -->
        <page-status :status="pageStatus">
            <template #error>
                <u-empty
                    :text="pageErrorMsg"
                    src="/static/images/empty/shop.png"
                    :icon-size="280"
                ></u-empty>
            </template>
        </page-status>
        <u-back-top
            :scroll-top="scrollTop"
            :top="1000"
            :customStyle="{
                backgroundColor: '#FFF',
                color: '#000',
                boxShadow: '0px 3px 6px rgba(0, 0, 0, 0.1)',
            }"
        >
        </u-back-top>
    </view>
</template>

<script>
import { apiGoodsDetail } from "@/api/goods";
import { apiCartAdd, apiCouponGet, apiCartNum } from "@/api/store";
import { apiGoodsCollect, apiGoodsMarketing } from "@/api/goods";
import { baseURL, basePath } from "@/config/app";
import { apiGetPage } from "@/api/store";
import { PageStatusEnum, OrderTypeEnum } from "@/utils/enum";
import { mapGetters, mapState } from "vuex";
import { strToParams } from "@/utils/tools";

export default {
    name: "GoodsDetail",

    data() {
        return {
            isDischarge: false,
            // 页面状态
            pageStatus: PageStatusEnum["LOADING"],
            pagesData: [],
            pageErrorMsg: "", // 页面异常信息
            scrollTop: 0,
            percent: 0,
            showShare: false,
            goodsInfo: {}, // 商品信息
            goodsComment: {}, // 用户评价
            goods_id: "", // 商品ID

            isGoodsCollect: false, // 商品收藏

            showGoodsSpec: false, // 商品规格: 显示 | 隐藏
            showCoupons: false, // 领券：显示 | 隐藏

            goodsSpecOptions: {
                spec: {},
            }, // 已选商品规格
            specButtonsList: [], // 规格按钮
            goodsCouponList: [], // 优惠券列表

            goodsCouponActive: "", // 使用的优惠券
            // 规格按钮组
            specButtonsGroups: {
                buy: {
                    event: "buy",
                    text: "立即购买",
                },
                cart: {
                    event: "cart",
                    text: "加入购物车",
                },
            },
            distribution: {},
        };
    },

    computed: {
        ...mapGetters(["isLogin"]),
        ...mapState({
            cartNum: (state) => state.cart.cartNum,
        }),
        // 优惠券【视图】
        goodsCouponSpecs() {
            // 展示数量
            const COUNT = 2;
            const coupons = this.goodsCouponList;
            // 优惠券列表数量
            const Len = coupons.length;
            // 承载容器
            const payload = [];

            for (let i = 0; i < COUNT && i <= Len - 1; ++i) {
                const value = coupons[i]["condition"];
                payload.push(value);
            }

            return payload;
        },

        // 已选商品规格
        specValueStr() {
            return this.goodsSpecOptions?.spec?.spec_value_str ?? "";
        },
    },

    methods: {
        // 获取装修页面
        getPage() {
            apiGetPage({
                type: 5,
                goods_id: this.goods_id,
            }).then((data) => {
                const { common, content } = data;

                this.pagesData = content;
                uni.setNavigationBarTitle({
                    title: common.title,
                });
            });
        },
        // 更改规格
        changeGoodsSpec(options) {
            this.goodsSpecOptions = options;
            console.log(options);
        },

        // 点击加入购物车按钮
        onCart() {
            this.showGoodsSpec = true;
            this.specButtonsList = [this.specButtonsGroups.cart];
        },

        // 更改商品收藏状态
        changeCollect(value) {
            value = !!value ? 0 : 1;
            if (!this.isLogin) return this.$Router.push("/pages/login/login");

            apiGoodsCollect({
                goods_id: this.goods_id,
                is_collect: value,
            })
                .then((data) => {
                    this.isGoodsCollect = value;
                })
                .catch((err) => {
                    console.log(err);
                });
        },

        // 去客服
        goService() {
            this.$Router.push({
                path: "/bundle/pages/service/service",
                query: {
                    goods_id: this.goods_id,
                    type: "normal",
                },
            });
        },

        // 去购物车
        goCart() {
            this.$Router.replaceAll({
                path: "/pages/shop_cart/shop_cart",
            });
        },

        // 点击立即购买按钮
        onBuy() {
            this.showGoodsSpec = true;
            this.specButtonsList = [this.specButtonsGroups.buy];
        },

        // 领取优惠券
        getCoupon(id) {
            if (!this.isLogin) return this.$Router.push("/pages/login/login");

            apiCouponGet({
                id,
            })
                .then(() => {
                    this.$toast({
                        title: "领取成功",
                    });
                    this.initMarketing();
                })
                .catch((err) => {
                    console.log(err);
                    // this.$toast({ title: '' })
                });
        },

        // 点击已选规格
        onGoodsOptions() {
            this.showGoodsSpec = true;
            this.specButtonsList = [
                {
                    ...this.specButtonsGroups.cart,
                    style: {
                        border: `solid 1px ${this.themeColor}`,
                        color: this.themeColor,
                        backgroundColor: "#FFFFFF",
                    },
                },
                this.specButtonsGroups.buy,
            ];
        },

        // 处理 加入购物车
        handleCartAdd({ spec, number }) {
            if (!this.isLogin) return this.$Router.push("/pages/login/login");

            apiCartAdd({
                item_id: spec.id,
                goods_num: number,
            })
                .then(() => {
                    this.$toast({
                        title: "已加入购物车",
                    });
                    this.$store.dispatch("getCartNum");
                })
                .catch((err) => {
                    throw new Error(err);
                });
        },

        // 处理 立即购买
        handleBuy({ spec, number }) {
            const form = this.goodsInfo.type == 1 ? "GOODS" : "VIRTUAL";
            this.$Router.push({
                path: "/pages/goods_order/goods_order",
                query: {
                    from: OrderTypeEnum[form],
                    payload: {
                        source: "buy_now",
                        goods: [
                            {
                                goods_num: number,
                                item_id: spec.id,
                            },
                        ],
                    },
                },
            });
        },

        // 初始化商品详情数据
        initGoodsDetail() {
            return new Promise((resolve, reject) => {
                apiGoodsDetail({
                    id: this.goods_id,
                    visit: 1,
                })
                    .then((data) => {
                        this.goodsInfo = data;
                        const hasComment =
                            JSON.stringify(data.goods_comment) !== "[]";
                        this.goodsComment = hasComment
                            ? data.goods_comment
                            : {};
                        this.isGoodsCollect = !!data.is_collect;
                        this.distribution = this.goodsInfo.distribution;
                        return data;
                    })
                    .then((data) => {
                        // #ifdef H5
                        // 设置分享
                        this.$store.dispatch("setWxShare", {
                            shareImage: data?.image,
                            shareDesc: data?.name,
                        });
                        // #endif
                        resolve(data);
                    })
                    .catch((err) => {
                        reject(err);
                    });
            });
        },

        // 初始化优惠券
        initMarketing() {
            return new Promise((resolve, reject) => {
                apiGoodsMarketing({
                    id: this.goods_id,
                })
                    .then((data) => {
                        this.goodsCouponList = data.coupon;
                        resolve(data);
                    })
                    .catch((err) => {
                        reject(err);
                    });
            });
        },
    },
    onPageScroll(e) {
        const top = uni.upx2px(100);
        const { scrollTop } = e;
        this.percent = scrollTop / top > 1 ? 1 : scrollTop / top;
        this.scrollTop = scrollTop;
    },
    async onLoad() {
        const options = this.$Route.query;

        // 商品ID赋值：点击 | 扫码
        options["scene"]
            ? (this.goods_id = strToParams(options["scene"])["id"])
            : (this.goods_id = options.id);

        try {
            if (!this.goods_id) throw new Error("该商品不存在");
            await this.getPage();
            // 商品详情数据
            await this.initGoodsDetail();
            // 促销
            await this.initMarketing();
            this.pageStatus = PageStatusEnum["NORMAL"];
        } catch (err) {
            console.log(err);
            this.pageErrorMsg = err.message;
            this.pageStatus = PageStatusEnum["ERROR"];
        }
    },

    onShareAppMessage() {
        const { name, image } = this.goodsInfo;
        return {
            title: name,
            path: `/pages/goods_detail/goods_detail?id=${this.goods_id}&invite_code=${this.userInfo.code}`,
            imageUrl: image,
        };
    },
    onHide() {
        this.isDischarge = true;
    },
    onShow() {
        this.isDischarge = false;
    },
};
</script>

<style lang="scss" scoped>
.goods-detail {
    padding-bottom: calc(100rpx + 20rpx + constant(safe-area-inset-bottom));
    padding-bottom: calc(100rpx + 20rpx + env(safe-area-inset-bottom));
}

.goods-info {
    padding: 20rpx 24rpx;
    background-color: #ffffff;

    // 会员价
    .vip-price {
        margin-top: 5rpx;
        background-color: #ffe9ba;
        color: #ffd4b7;
        line-height: 36rpx;
        border-radius: 6rpx;
        overflow: hidden;

        .price-name {
            background-color: #101010;
            padding: 3rpx 12rpx;
            position: relative;
            overflow: hidden;

            &::after {
                content: "";
                display: block;
                width: 20rpx;
                height: 20rpx;
                position: absolute;
                right: -15rpx;
                background-color: #ffe9ba;
                border-radius: 50%;
                top: 50%;
                transform: translateY(-50%);
                box-sizing: border-box;
            }
        }
    }

    .share {
        display: flex;
        justify-content: center;
        align-items: center;
        width: 134rpx;
        height: 60rpx;
        margin-right: -24rpx;
        border-radius: 30px 0 0 30px;
        background-color: #f6f6f6;
    }

    .goods-name {
        padding: 20rpx 0 10rpx 0;
        font-weight: 500;
    }
}

.discounts {
    display: flex;
    padding: 24rpx;
    margin-top: 20rpx;
    background-color: #ffffff;

    .coupon-tag {
        box-sizing: border-box;
        position: relative;
        display: flex;
        justify-content: center;
        min-width: 140rpx;
        height: 36rpx;
        padding: 0 20rpx;
        border-radius: 4px;
        margin-right: 10rpx;
        color: #ffffff;

        @include background_color();
        &::before,
        &::after {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            display: block;
            content: "";
            width: 10rpx;
            height: 10rpx;
            border-radius: 50%;
            background-color: #ffffff;
        }

        &::before {
            right: -5rpx;
        }

        &::after {
            left: -5rpx;
        }
    }
}

.specification {
    display: flex;
    padding: 24rpx;
    margin-top: 20rpx;
    background-color: #ffffff;
}

.detail {
    padding: 24rpx;
    margin-top: 20rpx;
    background-color: #ffffff;

    &-title {
        text-align: center;
        font-weight: 500;
        padding-bottom: 24rpx;
    }

    ::v-deep image {
        vertical-align: top;
    }

    // #ifdef H5
    ::v-deep img {
        vertical-align: top;
        display: inline;
    }

    // #endif
    // #ifdef MP-WEIXIN || APP-PLUS
    ::v-deep ._img {
        vertical-align: top;
        display: inline;
    }

    // #endif
}

.functions {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    height: calc(100rpx + constant(safe-area-inset-bottom));
    height: calc(100rpx + env(safe-area-inset-bottom));
    padding: 0 24rpx constant(safe-area-inset-bottom) 24rpx;
    padding: 0 24rpx env(safe-area-inset-bottom) 24rpx;
    border-top: $-solid-border;
    background-color: #ffffff;

    .icon-group {
        display: flex;
        justify-content: space-around;
        width: 268rpx;
        font-size: $-font-size-xxs;
        color: $-color-lighter;

        .icon-item {
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
        }
    }

    .button-group {
        flex: 1;
        display: flex;
        justify-content: space-between;

        .button-item {
            flex: 1;
            box-sizing: border-box;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 74rpx;
            margin-left: 14rpx;
            border-radius: 60px;

            &--cart {
                @include font_color();
                @include border_color();

                border-width: 1px;
                border-style: solid;
            }

            &--buy {
                @include background_color();
                color: #ffffff;
            }
        }
    }
}

.coupons {
    background-color: #f6f6f6;

    &-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 100rpx;
        padding: 0 30rpx;
        font-weight: 500;
        font-size: $-font-size-md;
        background-color: #ffffff;
    }

    &-main {
        padding: 20rpx;

        .coupons-item {
            &:nth-child(n + 2) {
                margin-top: 20rpx;
            }
        }
    }
}
.share-money {
    border-radius: 8rpx;
    padding: 8rpx 16rpx;
    color: #7b3e0e;
    background: linear-gradient(90deg, #fdeed8 0%, #fccf9c 100%);
}
</style>
